Fluorinated Ether Compound Structures Without CF3 or CF2 Groups

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Solution Overview

Problem

Existing fluorine-containing ether compounds typically contain either a trifluoromethyl group or a difluoromethylene group bonded to oxygen, limiting their structural diversity.

Innovation Solution

A fluorine-containing ether compound represented by the general formula R1-R2-O-R3-R4, where R1 is -CH3, -CH2F, -CHF2, or -CH2I, R2 is a fluorinated alkylene group with specific units, R3 is a single bond or fluorinated alkylene group, and R4 is -CH3 or -CH2F, ensuring no trifluoromethyl or difluoromethylene groups are present.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fluorine-containing ether compounds contain CF3- or -CF2- groups bonded to oxygen, then the compound structure is well-established and stable, but structural diversity is limited

Engineering Contradiction:

Improvestructural diversityVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention changes the chemical structure parameters by replacing the conventional CF3- or -CF2- groups bonded to oxygen with alternative fluorinated groups such as -CHF2, -CH2F, or -CH3 groups, thereby achieving structural diversity while maintaining the ether compound framework

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention segments the fluorine-containing groups from the oxygen-bonded position, allowing independent optimization of the fluorinated alkyl chains at terminal positions while maintaining simpler groups at the oxygen-bonded position, thus increasing structural diversity without excessive complexity

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If fluorine-containing ether compounds use conventional groups (CF3- or -CF2-), then the compound is well-documented and reliable, but the compound lacks novelty and alternative functionality

Engineering Contradiction:

Improvefunctional group varietyVSAvoidcompound stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The invention applies local quality by placing fluorine atoms at specific positions (terminal positions of alkyl chains) rather than at the oxygen-bonded position, allowing the compound to maintain stability through conventional ether linkages while achieving functional diversity through localized fluorination patterns

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The invention creates composite structures by combining conventional ether oxygens with various fluorinated alkyl groups in specific configurations, producing compounds that exhibit both the stability of established ether compounds and the functional diversity of novel fluorinated structures

Inventive Principle:

Principle #40Composite materials

Data Source

PatentEP4600239A1Fluorine-containing ether compound and method for producing same

Publication Date: 2025.08.13 DAIKIN INDUSTRIES LTD

AI summary

Provided is a fluorine-containing ether compound represented by general formula: R1-R2-O-R3-R4 wherein R1 is - CH3, -CH2F, -CHF2, -CH2I, or -CHFI; R2 is a fluorinated alkylene group having 1 to 10 carbon atoms consisting of unit represented by -CHF-, a fluorinated alkylene group having 2 to 10 carbon atoms consisting of unit represented by -CHF- and unit represented by -CH2-, or a fluorine-containing alkylene group having 3 to 10 carbon atoms consisting of unit represented by -CFH-, unit represented by -CH2-, and unit represented by -CHI-; R3 is single bond, a non-fluorinated alkylene group having 1 to 5 carbon atoms, or a fluorinated alkylene group having 1 to 10 carbon atoms; and R4 is -CH3, - CH2F, or -CHF2.